72 lines
2.8 KiB
Docker
72 lines
2.8 KiB
Docker
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# syntax=docker/dockerfile:1.7
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# =============================================================================
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# Django API image.
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#
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# Two stages: wheels are built with a compiler present, the runtime image gets
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# only the compiled artefacts. The result is small, has no build toolchain to
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# exploit, and runs as an unprivileged user on a read-only-friendly layout.
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# =============================================================================
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# -----------------------------------------------------------------------------
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# Stage 1 - build wheels
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# -----------------------------------------------------------------------------
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FROM python:3.12-slim-bookworm AS builder
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ENV PIP_NO_CACHE_DIR=1 \
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PIP_DISABLE_PIP_VERSION_CHECK=1
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RUN apt-get update \
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&& apt-get install --no-install-recommends -y build-essential libpq-dev \
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&& rm -rf /var/lib/apt/lists/*
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# The build context is the repository root so the image can also carry the
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# dataset; paths below are therefore prefixed with the directory name.
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WORKDIR /build
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COPY backend/requirements/ requirements/
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RUN pip wheel --wheel-dir /wheels -r requirements/base.txt
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# -----------------------------------------------------------------------------
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# Stage 2 - runtime
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# -----------------------------------------------------------------------------
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FROM python:3.12-slim-bookworm AS runtime
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ENV PYTHONDONTWRITEBYTECODE=1 \
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PYTHONUNBUFFERED=1 \
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PIP_NO_CACHE_DIR=1 \
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PIP_DISABLE_PIP_VERSION_CHECK=1 \
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DJANGO_SETTINGS_MODULE=config.settings.prod \
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PATH="/home/app/.local/bin:${PATH}"
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# libpq5 is the only runtime library psycopg needs; curl backs the healthcheck.
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RUN apt-get update \
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&& apt-get install --no-install-recommends -y libpq5 curl \
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&& rm -rf /var/lib/apt/lists/* \
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&& groupadd --gid 10001 app \
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&& useradd --uid 10001 --gid app --create-home --shell /usr/sbin/nologin app
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COPY --from=builder /wheels /wheels
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COPY backend/requirements/ /tmp/requirements/
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RUN pip install --no-index --find-links=/wheels -r /tmp/requirements/base.txt \
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&& rm -rf /wheels /tmp/requirements
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WORKDIR /app
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COPY --chown=app:app backend/ /app/
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COPY --chown=app:app data/ /data/
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# Static assets are only needed for the admin and the API docs, but baking them
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# in keeps the container stateless.
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RUN DJANGO_SECRET_KEY=build-only-not-a-real-secret-000000000000000000000000000000000000 \
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DATABASE_URL=postgres://build:build@localhost:5432/build \
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DJANGO_SETTINGS_MODULE=config.settings.dev \
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python manage.py collectstatic --noinput --clear \
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&& chmod +x /app/entrypoint.sh
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USER app
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EXPOSE 8000
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HEALTHCHECK --interval=30s --timeout=5s --start-period=40s --retries=3 \
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CMD curl -fsS http://localhost:8000/api/v1/health/live/ || exit 1
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ENTRYPOINT ["/app/entrypoint.sh"]
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CMD ["gunicorn", "config.wsgi:application", "--config", "/app/gunicorn.conf.py"]
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